CN106224961A - A kind of methanol fuel vacuum condensation hot-water boiler - Google Patents

A kind of methanol fuel vacuum condensation hot-water boiler Download PDF

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Publication number
CN106224961A
CN106224961A CN201610868488.9A CN201610868488A CN106224961A CN 106224961 A CN106224961 A CN 106224961A CN 201610868488 A CN201610868488 A CN 201610868488A CN 106224961 A CN106224961 A CN 106224961A
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CN
China
Prior art keywords
heat
methanol
water
pottery
combustor
Prior art date
Application number
CN201610868488.9A
Other languages
Chinese (zh)
Inventor
王刚荣
孙定芳
杨永宁
Original Assignee
山西煜能科技开发有限公司
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Application filed by 山西煜能科技开发有限公司 filed Critical 山西煜能科技开发有限公司
Priority to CN201610868488.9A priority Critical patent/CN106224961A/en
Publication of CN106224961A publication Critical patent/CN106224961A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12Radiant burners
    • F23D14/14Radiant burners using screens or perforated plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • Y02E20/363

Abstract

A kind of methanol fuel vacuum condensation hot-water boiler, uses pottery methanol decomposition burner, it is achieved the cracking of methanol is burnt and reaches flameless combustion;In its pot is the most airtight, and in it, certain vacuum of holding makes pot, the boiling point of water reduces, and utilizes burner combustion to heat, and water undergoes phase transition heat absorption at generating surface and becomes water vapour;When water vapour and outer circulation water pipe meet, undergo phase transition condensation heat release at water tube surfaces, outer circulation water is heated.Flue-gas temperature is reduced by flue gas condenser further, improves the thermal efficiency.It is a feature of the present invention that for achieving the object: maintain certain vacuum in pot;Burner is methanol decomposition and flameless burner;Flow of flue gas backhaul has a water vapour reheat combustor;Flue gas condensing is integrated with boiler.

Description

A kind of methanol fuel vacuum condensation hot-water boiler

Technical field

The present invention relates to boiler technology field, particularly relate to the vacuum condensation hot-water boiler that a kind of methanol is fuel.

Background technology

Energy-saving and emission-reduction, cleaning fuel are the permanent demands of social sustainable development.In terms of heating boiler and bath water, Mainly based on coal-burning boiler, it was found that four one-tenth of China's atmosphere pollution are discharged from coal burning.In recent years in order to full Toe ring guaranteed request, gradually develops gas fired-boiler.And gas fired-boiler must be in the coverage of gas distributing system, its operating cost Higher.Methanol is a kind of clean environment firendly green energy resource, if realizing burning completely, only has carbon dioxide and water in its emission. The ethanol combustor of prior art uses the mode of simple methanol nozzle atomization burning, and it exists incomplete combustion, the thermal efficiency Low, waste of fuel is big waits deficiency.The most relatively advanced combustion system is to burn, as China is special after methanol fuel cracking The disclosed large-sized boiler methanol high-temp combustion cracker of profit, it uses cracking tube to import methanol fuel, sets in cracking tube bottom Being equipped with alcohol based burning machine to heat the methanol in cracking tube and make it crack, cracking gas shower nozzle from cracking tube sprays and fires Burning, this belongs to the most original methanol decomposition mode, it is not enough mainly cracking not exclusively, lysis efficiency is low, combustor is wasted Fuel and environmental issue.Another defect of this type of methanol boiler is high fume temperature, and utilization rate of heat value is low.Additionally, the 3rd The most serious problem is as small-sized household heating boiler, and it lacks automaton, therefore can not be according to indoor temperature The regulation fuel supply i.e. exothermic temperature of boiler in time, particularly during unmanned at night, indoor temperature there will be too high or mistake Low etc..

Summary of the invention

For the problems referred to above, a kind of methanol in vacuo condensation heat homogeneous solution-type reactor of design, solve prior art incomplete combustion and Blowdown is serious, wastes fuel and can not realize the problems such as automatic control.

A kind of methanol fuel vacuum condensation hot-water boiler, including combustor, with Heat Room and the cigarette of described combustion chamber Waste heat recovery room is coagulated in air cooling, it is characterized in that described combustor head is provided with pottery methanol decomposition burner, described burning Top, room is disposed with phase transformation vaporization chamber, steam reheat combustor, steam phase transforming condensation chamber and flue gas condensing waste heat recovery room, described Phase transformation vaporization chamber, steam reheat combustor constitute an internal closing Heat Room connected, described phase transformation with phase transformation condensation chamber three Having heat transferring medium in vaporization chamber, the through described phase transformation vaporization chamber of fume pipe and steam reheat combustor body, heat exchanger tube is through turning cold mutually Solidifying room connects with exterior line with flue gas condensing waste heat recovery room, and under described Heat Room room temperature state, internal pressure is-0.092- 0.08Mpa。

Described methanol fuel vacuum condensation hot-water boiler, is characterized in that described pottery methanol decomposition burner includes One cylindrical body and be placed in the pottery cyclone disk of described cylindrical body end, is provided with accumulation of heat in described cylindrical body Plate, described heat accumulation plate is shaped with accumulation of heat hole, and the barrel of described cylindrical body is evenly equipped with installing hole, described heat accumulation plate side Having the mounting head mated with described installing hole, the heat accumulation plate being placed in cylindrical body is vertical or skewed installation, described storage The aperture of hot hole is 1-3mm.

Described methanol fuel vacuum condensation hot-water boiler, is characterized in that described pottery cyclone disk includes ring-type Body, central flame cap and potsherd, equidistant on wherein said annular body circumference be provided with the skewed slot of N bar, described slot Bottom is fourth of the twelve Earthly Branches groove, is inserted with potsherd in described slot, and the tenon structure mated with described fourth of the twelve Earthly Branches groove is arranged at the bottom of described potsherd, described The front portion of potsherd is jagged, and described central flame cap is the cup-like structure of one end band end socket, and the excircle of described end socket highlights structure Becoming the outer edgewise mated with breach, central flame cap is placed in the central authorities of annular body by outer edgewise and breach.

Described methanol fuel vacuum condensation hot-water boiler, is characterized in that there is fire hole on the end socket of described central flame cap, institute The N value stated is more than or equal to 3, less than or equal to 30.

The methanol fuel vacuum condensation hot-water boiler of the present invention, with methanol as fuel, uses the burning of pottery methanol decomposition Device so that fuel becomes CO2 and water after burning completely, its combustion process is stable and burning is clean, free from extraneous odour of discharging fume, NOXLow In 80mg/m.Being provided with airtight vacuum Heat Room, heat exchange efficiency is high, is provided with flue gas condensing waste heat recovery at flue end Device, is down to about 30 ~ 45 degree by chimney meatus transmitting smoke temperature, the substantially all recovery of flue gas condensing waste heat.Make full use of the thing of smoke evacuation Reason sensible heat and the latent heat that discharged of water recovery, by the boiler thermal output calculated on the basis of fuel Lower heat value up to 110% with On.Exhaust gas temperature can be reduced to only high about 10 DEG C than inflow temperature, plays the thermal efficiency improving whole boiler, fuel-saving Effect.Boiler only needs a few minutes from hot water of lighting a fire to.

Accompanying drawing explanation

Fig. 1 is the boiler overall structure schematic diagram of the present invention;

Fig. 2 is pottery methanol decomposition burner structure schematic diagram;

Fig. 3 is heat accumulation plate structural representation;

Fig. 4 is pottery cyclone disk general assembly drawing floor map;

Fig. 5 is the A-A profile of Fig. 4;

Fig. 6 is annular body structural representation;

Fig. 7 is central flame cap structural representation;

Fig. 8 is ceramic chip structure schematic diagram.

In figure: 1-pottery methanol decomposition burner;2-combustor;3-phase transformation vaporization chamber;4-steam reheat combustor;5-steams Vapour phase becomes condensation chamber;6-hot-water line;7-flame sensor;12-flue gas condensing waste heat recovery room;14-cylindrical body;15-stores Hot plate;16-installing hole;17-mounting head;18-accumulation of heat hole;19-annular body;20-central flame cap;21-potsherd;22-breach; 23-slot;24-fourth of the twelve Earthly Branches groove;25-tenon structure;The outer edgewise of 26-;27-fire hole.

Detailed description of the invention

Technical scheme is further illustrated below in conjunction with attached.

It is the structural representation of the methanol fuel vacuum condensation hot-water boiler of the present invention shown in Fig. 1, pottery methanol in figure Cracking burner 1 is fixedly linked with inserting combustor 2, the periphery of combustor 2 and the chuck of rear end formation and phase transformation vaporization chamber 3, steam reheat combustor 4, steam phase transforming condensation chamber 5 collectively form the negative pressure Heat Room of closing of an intercommunication, wherein phase transformation evaporation Room 3, steam reheat combustor 4 and the arrangement of steam phase transforming condensation chamber 5 sequence from low to uper part, separated by orifice plate, therebetween at phase transformation vaporization chamber Inside there is heat transferring medium.Many pipe/the sections entering flue gas condensing waste heat recovery room through Heat Room via combustor define flue gas The passage of circulation;High temperature smoke pipe (road) is divided into three backhauls by its trend in body of heater, and combustor constitutes first time of boiler Journey, the flue gas pipeline section after flue gas is turned back for the first time enters the second backhaul that phase transformation vaporization chamber 3 is boiler, and flue gas second time is turned back Rear entrance steam reheat combustor 4 is the 3rd backhaul of boiler.The part of hot water line is arranged in Heat Room top i.e. steam phase transforming Condensation chamber 5, another part (finned) pipeline of hot water line is positioned at the i.e. flue gas condensing waste heat of flue at boiler top and returns Receive indoor.Figure Flame sensor 7 is used for measuring flame combustion chamber temperature.

Shown in Fig. 2-3, pottery methanol decomposition burner 11 includes cylindrical body 14, uniform on the barrel of cylindrical body Installing hole 16, heat accumulation plate 15 is had to be arranged on cylindrical body 14 by the mounting head 17 mated with described installing hole 16 of its side In, described heat accumulation plate 15 is shaped with the accumulation of heat hole 18 that aperture is 1-3mm.

Above-mentioned installing hole is dovetail hole or other shapes of irregularly-shaped hole, and mounting head is mated all the time with installing hole and is inserted directly into , period can leave a fixed gap, is convenient for changing and expands with heat and contract with cold change with adaptation.Above-mentioned cylindrical body 14 is adopted with heat accumulation plate 15 With ceramic material or other material.Wherein during heat accumulation plate requirement heat, surface is brought rapidly up, and cylindrical body requires have Heat-insulating property.

Fig. 4-8 is the cyclone disk structural representation being arranged on pottery methanol decomposition burner head, shown in figure, and pottery Cyclone disk is combined by annular body 19, central flame cap 20 and potsherd 21 and constitutes.Annular body 19 is ring barrel structure, at this ring cylinder Top be evenly distributed with several skewed slots 23, the quantity of above-mentioned slot regard ring cylinder radius arrange, usual value More than or equal to 3, within 30, but during actual design, it is not limited in this interval value.The fourth of the twelve Earthly Branches is arranged at the bottom of slot Groove 24.The tenon structure 25 mated with above-mentioned fourth of the twelve Earthly Branches groove 24 is arranged at potsherd 21 bottom, and the outside of potsherd 21 is passed through upper after inserting slot State the fourth of the twelve Earthly Branches, tenon structure makes potsherd be combined with ring cylinder.The front portion of potsherd is provided with breach 22.Central flame cap 20 be one inverted Cup-like structure, the end socket neighboring of its one end is prominent constitutes outer edgewise 26, is provided with several fire holes 27 on end socket.Potsherd After 21 have assembled with annular body, the anterior of all potsherds constitutes a step-like centripetal circle, and central flame cap 20 passes through outer Limit coordinates the central authorities being placed in annular body with above-mentioned step.

During use, producing and expand after each Part temperature of these parts raises, potsherd 21 is at the fourth of the twelve Earthly Branches groove of pottery annulus Middle slip, is also such when temperature reduces after-contraction, so internal stress breakage problem will not be produced.And if having pottery in using Ceramics damages, and can be individually replaced.

During use, deionized water (distilled water is more preferably) is injected by water injection pipe and vacuum-pumping tube, inject water level higher than phase Become vaporization chamber 3 inner gas passage pipe and sentence about 2cm to the maximum, then taken out by water injection pipe and vacuum-pumping tube with vacuum pump Vacuum operation, is evacuated to-0.08 ~-0.092MPa by vacuum, then closure water injection pipe and the vacuum-pumping tube mouth of pipe;Pottery methanol Cracking burner 1 selects the outlet size substantially without obvious flame to select for reasonable when assembling;The internal diameter of combustor 2 is with pottery Methanol decomposition burner 1 can loosely insert after assembling and determine.After boiler body entirety uses the insulation material cladding of 50mm, outer housing Shell.

During work, the granule that methanol sprays through methanol atomizer, due to the capillary reason of methanol.So suspending Aloft spheroidal particle, when atomization methanol granule first pass through ignition electrode produce electric arc, some methanol atomizing particles first by Lighting, the methanol flame after lighting enters pottery methanol decomposition burner 1, begins to warm up the passage of heat accumulation plate and cylindrical body Wall, heat accumulation plate and conduit wall are rapidly heated to methanol decomposition temperature.The most substantial amounts of methanol atomizing particle continuously enters pottery In matter methanol decomposition burner, in high temperature environments, first these methanol particle surfaces gasify, and form a gasification homocentric sphere Body, liquid fuel combustion process is stratified combustion, so first burn in granule gasification top layer under aerobic hot environment, surface is fired Burning can seize the oxygen around surface, although it is superfluous that such situation causes integrated air amount, but granule inside is anoxia State, therefore under the hot environment of heat storage passage, heat radiation conduction of heat penetrates granule top layer so that inside reaches cracking temperature Degree, internal generation thermal cracking, generate other components such as hydrogen and carbon monoxide after cracking.The latent heat of methanol granule gasification and cracking Required heat is then provided by ceramic heat-storing plate and barrel.Due to atomizing particle size and in ceramic heat storage body passage position Put the temperature difference caused and can generate different cracking components.When the product after cracking and air are blended in ceramic heat storage body passage In blow to exit due to the effect of blower fan, under the effect changing airflow direction passage that exit is arranged, produce vortex gas Stream.This changes airflow direction passage and slow down the flow velocity of gaseous mixture so that the flow velocity of each passage of heat storage is consistent, this change gas Flow path direction passage produce strong disturbance make various cracking after component and air be sufficiently mixed burning, form extremely short rotation Flame, and produce the high temperature more than 1300 degree.

Claims (4)

1. a methanol fuel vacuum condensation hot-water boiler, including combustor (2), with Heat Room and the cigarette of described combustion chamber Waste heat recovery room is coagulated in air cooling, it is characterized in that described combustor head is provided with ethanol combustor (1), with described ethanol combustor Pottery methanol decomposition burner (11) of coupling, described combustor top is disposed with phase transformation vaporization chamber (3), steam reheating Room (4), steam phase transforming condensation chamber and flue gas condensing waste heat recovery room (12), described phase transformation vaporization chamber, steam reheat combustor and phase Becoming condensation chamber three and constitute the closing Heat Room of an internal connection, have heat transferring medium in described phase transformation vaporization chamber, flue gas is through Described phase transformation vaporization chamber and steam reheat combustor body, hot-water line (6) through phase transformation condensation chamber and flue gas condensing waste heat recovery room with Exterior line connects, and under described Heat Room room temperature state, internal pressure is-0.092-0.08Mpa.
Methanol fuel vacuum condensation hot-water boiler the most according to claim 1, is characterized in that described pottery methanol splits Solving burner include a cylindrical body (14) and be placed in the pottery cyclone disk of described cylindrical body end, described tubular is originally Internal it is provided with heat accumulation plate (15), described heat accumulation plate is shaped with accumulation of heat hole (18), on the barrel of described cylindrical body (14) all Being furnished with installing hole (16), there is the mounting head (17) mated with described installing hole (16) described heat accumulation plate side, is placed in tubular originally Internal heat accumulation plate is vertical or skewed installation, and the aperture in described accumulation of heat hole (18) is 1-3mm.
Methanol fuel vacuum condensation hot-water boiler the most according to claim 2, is characterized in that described pottery cyclone disk Including annular body (19), central flame cap (20) and potsherd (21), equidistant on wherein said annular body circumference it is provided with N The skewed slot of bar (23), described slot bottom is fourth of the twelve Earthly Branches groove (24), is inserted with potsherd (21), described pottery in described slot (23) The tenon structure (25) mated with described fourth of the twelve Earthly Branches groove (24) is arranged at the bottom of sheet (21), and the front portion of described potsherd is jagged (22), described Central flame cap (20) is the cup-like structure of one end band end socket, outside the prominent composition of the excircle of described end socket is mated with breach (22) Edgewise (26), central flame cap (20) is placed in the central authorities of annular body by outer edgewise (26) and breach (22).
Methanol fuel vacuum condensation hot-water boiler the most according to claim 3, is characterized in that the end socket of described central flame cap On have fire hole (27), described skewed slot N value be more than or equal to 3, less than or equal to 30.
CN201610868488.9A 2016-09-30 2016-09-30 A kind of methanol fuel vacuum condensation hot-water boiler CN106224961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610868488.9A CN106224961A (en) 2016-09-30 2016-09-30 A kind of methanol fuel vacuum condensation hot-water boiler

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107218597A (en) * 2017-05-25 2017-09-29 山西煜能科技开发有限公司 A kind of method of methanol decomposition burning under open environment
CN108019929A (en) * 2017-11-28 2018-05-11 崔秀萍 A kind of boiler heating system and its method based on heat medium water
CN108019941A (en) * 2017-11-28 2018-05-11 崔秀萍 A kind of heat medium water vacuum boiler and its method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107218597A (en) * 2017-05-25 2017-09-29 山西煜能科技开发有限公司 A kind of method of methanol decomposition burning under open environment
CN108019929A (en) * 2017-11-28 2018-05-11 崔秀萍 A kind of boiler heating system and its method based on heat medium water
CN108019941A (en) * 2017-11-28 2018-05-11 崔秀萍 A kind of heat medium water vacuum boiler and its method

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